we are about to design a drum level control system in plc.. we need ladder logic.. sum1 pls help us.. ....etc

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Security is the degree of protection against damages, danger, loss and crime. Security is a form of protections structures
and processes that provide or improve security as a condition. A security system provides a form of protection that
ensures the safety and security of the assets and the threat but is not limited to the elimination of either the asset or the
threat.
Anti-theft security system utilizes an embedded system design with Dual Tone Multi Frequency (DTMF) and a GSM to
monitor and safeguard a car. It secures the car against the ....etc

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The concept of an embedded programmable logic controller (PLC) as parr of a much larger suite of dedicated control software to provide a flexible I/O interface for industrial microprocessor control systems is considered. The use of such a system allows modification of the system operation by semiskilled staff without compromising the integrity of the system software. The embedded PLC can also be used to control the overall function of a large system of dedicated software and hardware. ....etc

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RADIO FREEQUENCY CONTROLLED, ROBOT

DESCRIPTION

A TE trigger the 3encoders are a series of CMOS LSIs for remote control system applications. They are capable of encoding 18 bits of information which consists of N address bits and 18_N data bits. Each address/data input externally trinary programmable if bonded out. It is otherwise set floating internally. Various packages of the 318encoders offer flexible combinations of programmable address/data to meet various application needs. The programmable address/data ....etc

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plz send bstract for plc based automatic industrial drainage timer ....etc

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HISTORY
1930: proposal for the use of electric field for heating dielectric material.
1945: Heating effect of microwaves was discovered accidentally.
1947: World s first microwave oven was discovered.
1954: An improved version came into existence.
1967: The world s first popular home model was introduced.
PERCY SPENCER- the inventor
Born in Howland, Maine, orphaned at a young age and raised by his aunt and uncle.
never graduated from school. Went to work in a mill at a age of 12.
In 1912, joined t ....etc

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How a Microwave Oven Works



What are Microwaves

Microwaves are a form of electromagnetic energy, like light waves or radio waves

Microwaves are used extensively in communications
such as to relay long-distance telephone signals, television programs and computer information across the earth or to a satellite in space.

Good for transmitting information because it can penetrate haze, light rain and snow, clouds, and smoke.

Also used in radars and in detecting speeding cars.

Microwave has becom ....etc

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plz help..its for my colg seminar..required for final year project
plz help..its for my colg seminar..required for final year project ....etc

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Photovoltaic cells according to their electrical performance, tested under simulated sunlight. A variety of testers exist, but they all face a common challenge of handling cells that are very small and thin, which makes it difficult to transport the cells from the conveyer to the storage box. This paper presents a new design for a handling robot with vacuum end-effectors, which uses a PLC controller to govern the movement of the cells and the testing process. The design applies to
solar cell testers for monocrystalline, polycrystalline, cadmium ....etc

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Basic block diagram of microwave oven and function of each block ....etc

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